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SG81885A1 - Epoxidation catalyst and process - Google Patents

Epoxidation catalyst and process

Info

Publication number
SG81885A1
SG81885A1 SG9605905A SG1996005905A SG81885A1 SG 81885 A1 SG81885 A1 SG 81885A1 SG 9605905 A SG9605905 A SG 9605905A SG 1996005905 A SG1996005905 A SG 1996005905A SG 81885 A1 SG81885 A1 SG 81885A1
Authority
SG
Singapore
Prior art keywords
solubilized
catalyst
promoting amount
ethylene oxide
metal
Prior art date
Application number
SG9605905A
Inventor
Wayne Errol Evens
Carolus Matthias Anna Mesters
Original Assignee
Shell Int Research
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shell Int Research filed Critical Shell Int Research
Publication of SG81885A1 publication Critical patent/SG81885A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66—Silver or gold
    • B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/688—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with manganese, technetium or rhenium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Epoxy Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

This invention relates to ethylene oxide catalyst for the vapor phase production of ethylene oxide from ethylene and oxygen prepared by impregnating a porous, refractory support having a surface area ranging from about 0.05 to about 10 m2/g with a solubilized catalytically effective amount of silver, a solubilized promoting amount of alkali metal, a solubilized promoting amount of rhenium, and a solubilized promoting amount of hafnium metal, wherein the Group IVB metal is provided in the form of Group IVB oxo salts. The catalyst provide substantial initial activity improvement as well as long term selectivity and activity stability improvement over prior art rhenium promoted catalyst, without any loss of initial selectivity advantage.
SG9605905A 1993-12-30 1994-12-28 Epoxidation catalyst and process SG81885A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/176,044 US5418202A (en) 1993-12-30 1993-12-30 Ethylene oxide catalyst and process

Publications (1)

Publication Number Publication Date
SG81885A1 true SG81885A1 (en) 2001-07-24

Family

ID=22642752

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9605905A SG81885A1 (en) 1993-12-30 1994-12-28 Epoxidation catalyst and process

Country Status (13)

Country Link
US (3) US5418202A (en)
EP (1) EP0737099B1 (en)
JP (1) JP3832848B2 (en)
CN (1) CN1087191C (en)
AT (1) ATE168042T1 (en)
AU (1) AU680713B2 (en)
CA (1) CA2180153C (en)
DE (1) DE69411591T2 (en)
DK (1) DK0737099T3 (en)
ES (1) ES2118551T3 (en)
GR (1) GR3027703T3 (en)
SG (1) SG81885A1 (en)
WO (1) WO1995017957A1 (en)

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Also Published As

Publication number Publication date
EP0737099B1 (en) 1998-07-08
WO1995017957A1 (en) 1995-07-06
ES2118551T3 (en) 1998-09-16
US5597773A (en) 1997-01-28
GR3027703T3 (en) 1998-11-30
AU1371195A (en) 1995-07-17
JPH09507159A (en) 1997-07-22
CN1087191C (en) 2002-07-10
CA2180153C (en) 2005-09-27
DK0737099T3 (en) 1998-11-16
EP0737099A1 (en) 1996-10-16
JP3832848B2 (en) 2006-10-11
AU680713B2 (en) 1997-08-07
CN1139886A (en) 1997-01-08
US5703253A (en) 1997-12-30
CA2180153A1 (en) 1995-07-06
DE69411591D1 (en) 1998-08-13
ATE168042T1 (en) 1998-07-15
US5418202A (en) 1995-05-23
DE69411591T2 (en) 1998-11-12

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